Carton and liner assembly



Sept. 8, 1964 P. CHERRIN CARTON AND LINER ASSEMBLY Original Filed March 10, 1960 4 Sheets-Sheet l :7 m m w.

p 3, 1954 P. CHERRIN CARTON AND LINER ASSEMBLY 4 Sheets-Sheet 2 Original Filed March 10. 1960 INVENTOR.

BY rr FIVE/ Sept. 8, 1964 P. CHERRlN CARTON AND LINER ASSEMBLY 4 Sheets-Sheet 4 Original Filed March 10, 1960 INVEN'I OR C'Zerrifi.

w fig 7% J7 xA/z/s! United States Patent 3,147,675 CARTGN AND LINER ASEMELY Phillip Cheri-in, 12871 Sherwood, Huntington Woods, Mich, assignor of one-fifth to Abe Cherrin, Detroit, Mich, one-fifth to Lem Cherrin and one-fifth to Archie Qherrin, both of flak Park, Mich, and one-fifth to the estate of Sam Cherrin, deceased, Detroit, Mich. Continuation of application Ser. No. 14,033, May 10, 1960, now Patent No. 3,079,060, dated Feb. 26, 1%3. This application ()et. 29, 1962, Ser. No. 233,747

14 Claims. (Cl. 9336.01)

This invention relates generally to a corrugated cardboard carton having a collapsible inner liner secured thereto and more particularly to novel methods for the fabricating of such a carton and liner assembly and for the setting up thereof, respectively. The present application is a continuation of my copending application Serial No. 14,033 now Patent No. 3,079,060, issued Feb. 26, 1963.

It is a primary object of the present invention to provide a highly efficient and novel method for fabricating carton and liner assemblies of the type disclosed in my aboveidentified copending application.

It is a further object of this invention to provide a unique and extremely eificient method for setting up a carton and liner assembly such as that disclosed in said copending application in such a way that it may be quickly and conveniently filled without further effort.

Further objects, features and advantages of this invention will become apparent from a consideration of the following description, the appended claims and the accompanying drawings in which:

FIGURE 1 is a perspective view of the carton and liner assembly of this invention, in a fully set up condition ready for filling;

FIGURE 2 is a perspective view of the carton and liner assembly after it has been filled and the top end of the carton closed;

FIGURE 3 is an enlarged sectional view looking substantially along line 3-3 in FIGURE 1;

FIG. 4 is an enlarged fragmentary view of the portion of FIGURE 3 indicated by the circle 4;

FIGURE 5 is a fragmentary foreshortened sectional view looking substantially along the line 5-5 in FIG- URE 3;

FIGURE 6 is a foreshortened sectional view looking along the line 6-6 in FIGURE 2;

FIGURE 7 is a developed plan view of the carton and liner assembly shown in FIGURE 1;

FIGURE 8 is an enlarged sectional view as seen along the line 88 in FIGURE 7;

FIGURE 9 is a diagrammatic illustration of a sequence of operations constituting a novel method for fabricating a carton and liner assembly, which method embodies the principles of the present invention;

FIGURES 10, 11, and 12 are perspective views illustrating a sequence of operations constituting a novel method for setting up a carton and liner assembly so that it may be quickly and conveniently filled without further eifort;

FIGURE 13 is a fragmentary perspective view of the bottom end of the carton and liner assembly as it is initially opened up; and

FIGURE 14 is a developed plan view of a modified form of the carton and liner assembly.

With reference to the drawing, the carton and liner assembly of this invention, indicated generally at 10, is illustrated in FIGURE 1 as including a corrugated cardboard carton 12 and a bag liner 14 which may be formed of any suitable collapsible or foldable material. The corrugated cardboard carton 12 is of a generally rectangular shape in cross section having side panels 16 and end 3,l47,h?5 Patented Sept. 8, 1964 panels 18. A pair of bottom closure flaps 20 (FIGURE 7) are integrally formed with the lower ends of the side panels 16 and similar bottom closure flaps 22 are integrally formed with the end panels 18. A pair of top closure flaps 24 are formed integral with the upper ends of the side panels 16 and similar top closure flaps 26 are formed integral with the upper ends of the panels 18. The bottom and top closure flaps 20 and 24 are of a length to extend half the distance between the side panels 16 in the opened position of the carton 12. It is to be understood that the terms side, end, top and bottom are used herein to facilitate the description of the carton 12 and are not to be construed as limiting either the shape or the position which the carton 12 must assume.

As shown in FIGURE 7, the closure fiaps 20, 22, 24, and 26 are all of substantially the same length and adjacent flaps are separated by a slot 28 formed in the corrugated cardboard blank which is scored and then folded to form the carton shown in FIGURE 2. The blank shown in FIGURE 7 is scored along the lines 30 so that when the blank is folded along the lines 30 a carton is formed which is rectangular in cross section and has the score lines 30 at the corners of the carton 12. In addition, the end panels 18 and the top and bottom closure flaps 22 and 26 are formed with median score lines 32 for a purpose to appear presently.

Generally speaking, to form the carton 12 from the blank shown in FIGURE 7, the end panels 18 are folded along the median score lines 32 and the side panels 16 are positioned in substantial alignment with each other. With the blank thus folded, the ends 34 of the blank are in an abutting relation at what will eventually be a corner of the carton 12.- A length of tape 35 is then applied so that it overlaps the blank ends 34 to form the seam which is necessary to complete the carton 12. The advantage of folding the blank along the median score lines 32 in the end panels 18 is that it provides for an initial alignment of the side panels 16 which is maintained during the setting up of the carton 12.

The liner 14, which may be of any collapsible or foldable material such as paper or plastic, and which is illustrated as being moisture proof polyethylene, is initially in a fiat form having a first pair of opposite flat sides 37 and a second pair of sides which are in the form of side pleats 36 that are folded inwardly so that the bag 14 is initially of a width corresponding substantially to the width of a side panel 16, as shown in FIGURES 7 and 8. The bottom end of the bag 14 is closed by a seam 38, formed usually by heat sealing opposite sides of the bag, which is initially aligned with the terminal end of one of the bottom closure flaps 20, as also shown in FIGURE 7. Adhesive 40 is applied to one of the side panels 16 and the bag 14 is placed on the adhesive so as to adhere one side 37 of the bag 14 to the carton 12. Adhesive 41 is applied to the other side panel 16 so that when it is folded over into alignment with the other side panel 16 and pressed into engagement with the other side 37 of the bag 14, this side of the bag is also secured to the carton 12. The pleats 36 in the bag 14 are of a width corresponding to the width of a carton end panel 18 so that when the carton 12 is opened up the bag 14 will be coextensive in size and form a liner on the inside of the carton 12.

An extremely efiicient method which may be utilized to achieve the above-described fabrication of the carton and liner assembly is illustrated diagrammatically in FIGURE 9. As will be noted, in this figure is illustrated an assembly line type sequence in which the line has two inputs, one indicated at A for the liner material and the other, indicated at C, for the carton blanks. As will be appreciated, except for the input and output of material from the assembly area, all operations could take place at a single Baposition or location, rather than at separate positions as shown herein for clarity.

The liner material may be initially supplied at position A in the form of a roll of continuous gusseted tube material, such as indicated at 100 in FIGURE 9. From position A liner material 1049 is conveyed through a suitable apparatus 102 at position B which provides therein a series of spaced transverse seals 38 and adjacent lines of perforation 104, alternately arranged. As will become apparent, the areas of adjacent sealing and perforating are spaced apart a distance corresponding to the desired length of the completed or finished liner. The seals and lines of perforation may be formed in any suitable manner using conventional continuous or intermittent feed equipment.

The carton liner blank, indicated at 1% in FIGURE 9, enters the production line at position C, from which it travels to position D where glue or adhesive is applied to each of the side panels I6, i.e., at 4%) and 41. The specific glue pattern provided is not critical and may be of the configuration illustrated for applications where it is desired that the liner form a permanent part of the carton. Alternately, if it is desired that the liner be adapted to be removed from the carton after it has been filled, the glue or adhesive may be applied only along the lower edges of side panels 16. In any case, it may be applied by any suitable well known means, such as by roller application, spraying, brushing, in the form of tape, or the like. In addition, if desired, adhesive maybe applied to the liner material either in lieu of or in addition to the adhesive applied to the carton blank.

From position D carton blank 166, with glue applied thereto, advances to position E where it joins with perforated and sealed liner material 1%. At position E the liner material is brought into longitudinal alignment with one of the side panels 16 of the carton blank, seal lit-4 is brought into registry with the lower edge of the corresponding bottom closure flap 2b, and the liner and carton blank are pressed together in any suitable manner to cause them to adhere to one another. The partially glued carton blank and liner then advance simultaneously to position F where carton blank MM is folded about median score lines 32 to bring each of the side panels 16 into registry with one another. This operation also causes each of the end panels 13 to be folded about their median score line, as can be clearly seen. At position F each of the side panels 18 are pressed together so that the previously unglued side panel will be secured to the upper layer of liner material 1%. The thus folded and glued carton blank and liner material then simultaneously advance to position G where a strip of suitable tape 35 is applied to secure the now abutting ends 34 of the blank together.

Any suitable conveyor means may be utilized, and through position G both the carton blank and liner material travel at a fixed single speed, whether the motion be continuous or intermittent. However, after the assembly leaves position G it engages another means of conveyance which operates at a slightly faster speed than the preceding one. As a consequence, the liner material which extends between the assembly leaving position G and the assembly advancing to position G is tensioned. This tension causes it to tear or separate along the line of perforations 104. The carton and liner assembly thus leaves position G completed and fully independent of the in-process assemblies, ready to be set up into a carton and filled. The assembly, just after it has been separated is illustrated at position H in FIGURE 9.

This assembly is flat and compact and may thus be easily and economically transported to whether it is needed. At that point setting up may be accomplished by first standing the assembly on end, in the manner illustrated in FTGURE 10. Since bag 14 is of a length such that the top end thereof extends substantially beyond the upper ends of top closure flaps 24 and 26, the top of the bag may then be grasped and turned outwardly and double over upon itself and inserted in the pairs of slots 28, between the top closure flaps 24 and 2d, at each end of the side panels, in the manner clearly illustrated in FIGURE 11. The assembly is then grasped in the manner shown in FIGURE 12 and score lines 32 are urged toward each other to straighten the folded end panels 18. This action provides for movement of the side panels 16 away from one another to a final position spaced apart a distance equal to the width of the end panels l8, and for the formation of the bottom of the liner, the beginning of which is shown in FIGURE 13.

When the bag 14 is set up the pleats 36 form triangular gussets or reinforcing sections 21 at opposite ends of the bottom of the bag 14. The gussets 21 are secured to the bag bottom at the seam 33 and are of double thickness, as shown in FIGURE 6. In addition, of course, the remainder of the bag is unfolded so that the upper end thereof is fully open, changing from the condition illustrated in FIGURE 12 to the fully open condition illustrated in FIGURE 1. Because the bottom flaps 20 are of a length to extend half the distance across the bottom of the carton, the positioning of the bottom end of the bag 14 so that it is located at the terminal end of a closure flap 2t} automatically provides for the location of the bottom end of the bag at the bottom ends of the carton side panels 16 when the carton is set up. The bottom closure ilaps 20 and 22 are then folded inwardly to close the lower end of the carton and a tape member 42 or the like is applied to the bottom end of the carton to secure the flaps together.

The resulting arrangement is such that the upper end of the bag 14 is maintained fully open, so that the assembly may easily be filled on a production line basis without any danger that the bag M, or the top thereof, will be in the Way. After the bag 14 has been filled so that the contents, indicated at 43 in FIGURE 6, are not above the upper ends of the side and end panels 16 and 13, the upper end of the bag 14 may, if desired, be closed with a Wire, string or the like, (not shown) or heat sealed. The top closure flaps 24 and 26 are then folded inwardly to positions closing the upper end of the carton 12 and a closure tape 48 is applied to the flaps 24.

The primary advantage of the carton assembly shown, having median fold lines 32; in addition to the corner fold ines 39 that are provided in a regular corrugated cardboard carton, is that the side panels 16 are in continual alignment thereby making it possible to adhere both sides of the bag liner 14 to the side panels 16 of the carton 12 and insert the upper end 44 of the bag in the slots 28 so that when the carton is set up the bag 14 is automatically unfolded with the top end thereof open. As a result, when the carton 12 is set up the bag 14 is automatically also unfolded and set up so that it forms an inner liner for the carton 12.

A modified carton and liner assembly 10b is illustrated in FIGURE 14. It is identical to the assembly 10, except that the ends 6t) of the blank which forms the carton 1217 are located so that the seam in the carton will be between the ends of a side panel 1612 rather than at one end as in the carton 12. Numerals, with the letter suffix b added, are used in FIGURE 11 to indicate parts which are similarly numbered in the assembly 10. Its methods of fabrication and setting up, respectively, are the same as described above for the first embodiment.

Another modified form of the carton and liner assembly which is also readily adapted to fabrication and to setting up by the aforedescribed methods is one wherein the liner is in the form of a flat non-gusseted bag. In such an embodiment the only difference is that the liner is formed from a simple non-gusseted tube of material and that its flattened width is equal to the distance between score lines 32 of the fiat carton blank. The final setup carton, therefore, (litters only in that the triangular bottom gussets which are found in the bottom of the bag during the setting up thereof are positioned beneath the bottom of the bag rather than above the bottom, as in the first embodiment.

From the above description, it is seen that this inven- .5 tion provides carton and liner assemblies and 10b which can be efficiently assembled on a production line basis to provide a lined corrugated cardboard carton which can then be efliciently filled with goods, also on a production line basis. Because the cartons are formed with a closure flap which extends across half the width of the bottom of the carton when the carton is set up and the bag is of a width corresponding to the Width of the box bottom, the bag 14 is properly positioned with respect to the carton 12 when the bag bottom end is positioned at the terminal end of the bottom closure flap. By making the bag 14 of a length such that it can be folded upon itself over a pair of opposite top closure flaps, a fully open position of the bag during filling is insured. The pairs of top flaps 24 and 26 are not folded along the score lines which separate them from the panels 16 and 18 until after the bag 14 is filled. Consequently, either or both pairs are capable of providing the necessary rigid support for the upper end of the bag 14 during filling.

It will be understood that the specific construction of the improved carton and liner assemblies which are herein disclosed and described and the methods directed to the fabrication and setting up thereof are presented for purposes of explanation and illustration and are not intended to indicate limits of the invention, the scope of which is defined by the following claims.

What is claimed is:

1. A method for fabricating a carton and liner assembly from a continuous tube of gusseted liner material and a flat carton blank which comprises a pair of side panels, a pair of end panels, and top and bottom closure flaps secured to the tops and bottoms respectively of all of said panels, all of said panels being of equal height and all of said closure flaps being of a height equal to one-half the width of said end panels, said end panels and associated flaps having vertically and centrally disposed fold lines, said method including the following steps: alternately sealing and perforating the liner material along parallel adjacent transversely extending lines at spaced intervals along the length thereof, each interval being greater than the total height of the carton blank; applying an adhesive to a portion of the inside surfaces of each side panel; moving the sealed and perforated liner material and carton blank together so that the liner material is in overlying registry with the inside surface of one of the side panels and the edges of the liner material coincide wtih the edges of said one side panel; positioning the liner material and carton blank while maintaining said registry so that said one side panel is positioned within one of said spaced intervals in the liner material, a transverse seal is aligned with the lower edge of the bottom flap secured to said one side panel, and a line of perforation is positioned above the corresponding top flap; folding the carton blank about the fold lines and pressing the side panels against one another to clamp the liner therebetween; securing the now abutting free edges of the carton blank together; and pulling the completed assembly away from the remainder of the liner material to tear it along the line of perforations.

2. A method as claimed in claim 1, wherein said pulling is achieved by feeding the completed assembly in a given direction faster than the liner material is being fed in the same direction.

3. A method for fabricating a carton and liner assembly from a continuous tube of liner material and a fiat carton blank which comprises a pair of side panels, a pair of end panels, and top and bottom closure flaps secured to the tops and bottoms respectively of all of said panels, said end panels and associated flaps having vertically and centrally disposed fold lines, said method including the following steps: alternately sealing and perof the carton blank; applying an adhesive to a portion of the inside surfaces of each side panel; moving the sealed and perforated liner material and carton blank together so that the liner material is in overlying registry with the inside surface of one of the side panels and the longitudinal axis of the liner material coincides with the central vertical axis of said one side panel; positioning the liner material and carton blank while maintaining said registry so that said one side panel is positioned within one of said spaced intervals in the liner material, a transverse seal is aligned with the lower edge of the bottom flap secured to said one side panel, and a line of perforation is positioned above the corresponding top flap; pressing the liner material and carton blank together; folding the carton blank about the fold lines and pressing the side panels against one another to clamp the liner therebetween; securing the now abutting free edges of the carton blank togther; and pulling the completed assembly away from the remainder of the liner material to tear it along the line of perforations.

4. A method as claimed in claim 3, wherein said pulling is achieved by feeding the completed assembly in a given direction faster than the liner material is being fed in the same direction.

5. A method for fabricating a carton and liner assembly from a continuous tube of liner material and a fiat carton blank which comprises a pair of side panels, a pair of end panels, and top and bottom closure flaps secured to the tops and bottoms respectively of all of said panels, said end panels and associated flaps having vertically and centrally disposed fold lines, said method including the following steps: alternately sealing and perforating the liner material along parallel adjacent transversely extending lines at spaced intervals along the length thereof, each interval being greater than the total height of the carton blank; applying an adhesive to a portion of the inside surfaces of each side panel; moving the seal and perforated liner material and carton blank together so that the liner material is in overlying registry with the inside surface of one of the side panels and the longitudinal axis of the liner material coincides with the central vertical axis of said one side panel; positioning the liner material and cartonrblank while maintaining said registry so that said one side panel is positioned Within one of said spaced intervals in the liner material, and a line of perforation is positioned above the top flap secured to said one side panel; pressing the liner material and carton blank together; folding the carton blank about the fold lines and pressing the other side panel against the other side of the liner material; securing the now abutting free edges of the carton blank together; and pulling the completed assembly away from the remainder of the liner material to tear it along the line of perforations.

6. A method as claimed in claim 5, wherein said pulling is achieved by feeding the completed assembly in a given direction faster than the liner material is being fed in the same direction.

7. A method of setting up a carton and liner assembly fabricated in the manner claimed in claim 5, including the following steps: folding a portion of the top of one side of the liner into the slots disposed between the top closure flaps secured to the side panels and those secured to one end panel; folding a portion of the top of V the other side of the liner into the slots disposed beforating the liner material along parallel adjacent transtween the top closure flaps secured to the side panels and those secured to the other end panel; urging the fold lines of the end panels toward one another to expand both the carton and liner; folding the bottom flaps of the carton inwardly to define a carton bottom; and securing the bottom flaps together.

8. A method for setting up a carton and liner assembly which comprises a pair of opposed side panels, an intermediate end panel secured to and disposed between the aligned ends of each of said side panels, top and bottom closure flaps secured to the tops and bottoms respectively of each of said panels, and a bag-like liner disposed between and secured to said side panels, the open top portions of said liner extending above the top of said carton, and each of said end panels being folded inwardly flat about a fold line coincident with the central vertical axis thereof, said method including the following steps: folding a portion of the top of one side of the liner liner into the slots disposed between the top closure flaps cured to the side panels and those secured to one end panel; folding a portion of the top of the other side of the liner into the slots disposed between the top closure flaps secured to the side panels and those secured to the other end panel; urging the fold lines of the end panels toward one another to expand both the carton and liner; folding the bottom flaps of the carton inwardly to define a carton bottom; and securing the bottom flaps together.

9. A method for fabricating and setting up a carton and liner assembly from a continuous tube of gusseted liner material and a flat carton blank which comprises a pair of side panels, a pair of end panels, and top and bottom closure flaps secured to the tops and bottoms respectively of all of said panels, all of said panels being of equal height and all of said closure flaps being of a height equal to one-half the width of said end panels, said end panels and associated flaps having vertically and centrally disposed fold lines, said method including the following steps: alternately sealing and perforating the liner material along parallel adjacent transversely extending lines at spaced intervals along the length thereof, each interval being greater than the total height of the carton blank; applying an adhesive to a portion of the inside surfaces of each side panel; moving the sealed and perforated liner material and carton blank together so that the liner material is in overlying registry with the inside surface of one of the side panels and the edges of the liner material coincide with the edges of said one side panel; positioning the liner material and carton blank while maintaining said registry so that said one side panel is positioned within one of said spaced intervals in the liner material, a transverse seal is aligned with the lower edge of the bottom flap secured to said one side panel, and a line of perforation is positioned above the corresponding top flap; pressing the liner material and carton blank together; folding the carton blank about the fold lines and pressing the other side panel against the other side of the liner material; securing the now abutting free edges of the carton blank together; pulling the completed assembly away from the remainder of the liner material to tear it along the line of perforations; folding a portion of the top of one side of the liner into the slots disposed between the top closure flaps secured to the side panels and those secured to one end panel; folding a portion of the top of the other side of the liner into the slots disposed between the top closure flaps secured to the side panels and those secured to the other end panel; urging the fold lines of the end panels toward one another to expand both the carton and liner; folding the bottom flaps of the carton inwardly to define a carton bottom; and securing the bottom flaps together.

10. A method for fabricating a carton and liner assembly from a continuous tube of liner material and a flat carton blank which comprises a pair of side panels, a pair of end panels, and top and bottom closure flaps, said panels having vertically and centrally disposed fold lines, said method including the following steps: alternately sealing and perforating the liner material along parallel adjacent transversely extending lines at spaced intervals along the length thereof, each interval being greater than the total height of the carton blank; applying an adhesive to a portion of the inside surface of each side panel; moving the sealed and perforated liner material and carton blank together so that the liner material is in overlying registry with the inside surface of one of the side panels and the longitudinal axis of the liner material coincides with the central vertical axis of said one side panel; positioning the liner material and carton blank while maintaining said registry so that said one side panel is positioned within one of said spaced intervals in the liner material, and a line of perforation is positioned above the carton blank; pressing the liner material and carton blank together; folding the carton blank about the fold lines and pressing the other side panel against the other side of the liner material; securing the now abutting free edges of the carton blank together; and pulling the completed assembly away from the remainder of the iner material to tear it along the line of perforations.

11. A method for fabricating a carton and liner assembly from a continuous tube of liner material and a flat carton blank which comprises a pair of side panels, a pair of end panels, and top and bottom closure flaps, said end panels having vertically and centrally disposed fold lines, said method including the following steps: alternately sealing and perforating the liner material along parallel adjacent transversely extending lines at spaced intervals along the length thereof, each interval being greater than the total height of the carton blank; applying an adhesive to a portion of the inside surface of the carton blank; moving the sealed and perforated liner material and carton blank together so that the liner material is in overlying registry with the inside surface of one of the side panels and the longitudinal axis of the liner material coincides with the central vertical axis of said one side panel; positioning the liner material and carton blank while maintaining said registry so that said one side panel is positioned within one of said spaced intervals in the liner material, and a line of perforation is positioned above the carton blank; folding the carton blank about the fold lines and pressing the other side panel against the other side of the liner material; securing the now abutting free edges of the carton blank together; and pulling the completed assembly away from the remainder of the liner material to tear it along the line of perforations.

12. A method for fabricating a carton and liner assembly from a continuous tube of liner material and a flat carton blank which comprises a pair of side panels, a pair of end panels, and top and bottom closure flaps, said end panels having vertically and centrally disposed fold lines, said method including the following steps: alternately sealing and perforating the liner material along parallel adjacent transversely extending lines at spaced intervals along the length thereof, each interval being greater than the total height of the carton blank; applying an adhesive to a portion of the inside surface of the carton blank; moving the sealed and perforated liner material and carton blank together so that the liner material is in overlying registry with the inside surface of one of the side panels and the longitudinal axis of the liner material coincides with the central vertical axis of said one side panel; positioning the liner material and carton blank while maintaining said registry so that said one side panel is positioned within one of said spaced intervals in the liner material, a transverse seal is positioned a distance below said one side panel equal to one-half the width of each of the end panels, and a line of perforation is positioned above the carton blank; folding the carton blank about the fold lines and pressing the now aligned two side panels against one another; securing the now abutting free edges of the carton blank together; and pulling the completed assembly away from the remainder of the liner material to tear it along the line of perforations.

13. A method as claimed in claim 12, wherein said pulling is achieved by feeding the completed assembly in a given direction faster than the liner material is being fed in the same direction.

14. A method for fabricating a carton and liner assembly from a liner having a sealed bottom end and a flat carton blank which comprises a pair of side panels, a pair of end panels, top and bottom closure flaps secured to the tops and bottoms respectively of said panels, all of said panels being of equal height and said closure flaps on said side panels being of a height equal to one-half the width of said end panels, said end panels and associated flaps having vertically and centrally disposed fold lines, said method including the following steps: applying an adhesive to a portion of the inside surfaces of each side panel; moving the liner and carton blank together so that the former is in overlying registry with the inside surface of one of the side panels of the latter, the longitudinal axis of the liner coincides with the central vertical axis of said one side panel, and the bottom seal on the liner is aligned with the lower edge of the bottom fiap secured to said one side panel; folding the carton blank about the fold lines and pressing two side panels toward one another to compress the liner therebetween; and securing the now abutting free edges of the carton blank together.

References Cited in the file of this patent UNITED STATES PATENTS 2,252,106 Waters Aug. 12, 1941 2,581,801 Lienart Jan. 8, 1952 2,758,520 Hepworth Aug. 14, 1956 2,801,577 Ingharn Aug. 6, 1957 FOREIGN PATENTS 833,297 Great Britain Apr. 21, 1960 UNITED STATES PATENT OFFICE v CERTIFICATE OF CORRECTION Patent No. 3,147,675

Phillip Cherrin It is hereby certified that error appears in the above numbered patent requiring correction and that the said Letters Patent should read as corrected below Column 3, line 67, for "whether" read wherever column 4, line 18, strike out "the"; column 7, line 8, strike out "liner"; line 9, for "cured" read secured same column 7, line 64, after "said" insert end Signed and sealed this 6th day of July 1965.

(SEAL) September 8, 1964 Attest:

' EDWARD J. BRENNER ERNEST W. SWIDER Commissioner of Patents A ttesting Officer 

1. A METHOD FOR FABRICATING A CARTON AND LINER ASSEMBLY FROM A CONTINUOUS TUBE OF GUSSETED LINER MATERIAL AND A FLAT CARTON BLANK WHICH COMPRISES A PAIR OF SIDE PANELS, A PAIR OF END PANELS, AND TOP AND BOTTOM CLOSURE FLAPS SECURED TO THE TOPS AND BOTTOMS RESPECTIVELY OF ALL OF SAID PANELS, ALL OF SAID PANELS BEING OF EQUAL HEIGHT AND ALL OF SAID CLOSURE FLAPS BEING OF A HEIGHT EQUAL TO ONE-HALF THE WIDTH OF SAID END PANELS, SAID END PANELS AND ASSOCIATED FLAPS HAVING VERTICALLY AND CENTRALLY DISPOSED FOLD LINES, SAID METHOD INCLUDING THE FOLLOWING STEPS: ALTERNATELY SEALING AND PERFORATING THE LINER MATERIAL ALONG PARALLEL ADJACENT TRANSVERSELY EXTENDING LINES AT SPACED INTERVALS ALONG THE LENGTH THEREOF, EACH INTERVAL BEING GREATER THAN THE TOTAL HEIGHT OF THE CARTON BLANK; APPLYING AN ADHESIVE TO A PORTION OF THE INSIDE SURFACES OF EACH SIDE PANEL; MOVING THE SEALED AND PERFORATED LINER MATERIAL AND CARTON BLANK TOGETHER SO THAT THE LINER MATERIAL IS IN OVERLYING REGISTRY WITH THE INSIDE SURFACE OF ONE OF THE SIDE PANELS AND THE EDGES OF THE LINER MATERIAL COINCIDE WITH THE EDGES OF SAID ONE SIDE PANEL; POSITIONING THE LINER MATERIAL AND CARTON BLANK WHILE MAINTAINING SAID REGISTRY SO THAT SAID ONE SIDE PANEL IS POSITIONED WITHIN ONE OF SAID SPACED INTERVALS IN THE LINER MATERIAL, A TRANSVERSE SEAL IS ALIGNED WITH THE LOWER EDGE OF THE BOTTOM FLAP SECURED TO SAID ONE SIDE PANEL, AND A LINE OF PERFORATION IS POSITIONED ABOVE THE CORRESPONDING TOP FLAP; FOLDING THE CARTON BLANK ABOUT THE FOLD LINES AND PRESSING THE SIDE PANELS AGAINST ONE ANOTHER TO CLAMP THE LINER THEREBETWEEN; SECURING THE NOW ABUTTING FREE EDGES OF THE CARTON BLANK TOGETHER; AND PULLING THE COMPLETED ASSEMBLY AWAY FROM THE REMAINDER OF THE LINER MATERIAL TO TEAR IT ALONG THE LINE OF PERFORATIONS. 